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A financial institution is to implement a system that calculates the interest rates paid on investment accounts based on the sum invested.
You are responsible for testing the system and decide to use equivalence partitioning and boundary value analysis to design test cases. The requirements describe the following expectations:
Investment range | Interest rate
R500 to RIO 000 10%
RIO 001 to R50 000 11%
R50 001 to RlOOOOO 12%
RIOOOOl to R500 000 | 13%
What is the minimum number of test cases required to cover all valid equivalence partitions for calculating the interest?
Suggested Answer: C
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Statement coverage is a metric used in white-box testing that measures the percentage of executable statements in the code that have been executed by the test cases. It is calculated as the number of statements executed by the tests divided by the total number of executable statements in the code, providing an indication of how much of the code has been tested.
27 comments · newest first
LA
Layla
10 months ago
I thought it might be more, like 5 or 6.
RO
Rory
11 months ago
Definitely 4, that covers all the ranges perfectly!
SO
Sophia
11 months ago
Wait, are we sure about that? What if we missed a boundary?
ME
Merilyn
11 months ago
I agree, 4 seems right for the partitions.
JE
Jeanice
11 months ago
Looks like we need at least 4 test cases for those ranges.
AM
Amos
12 months ago
I believe we should focus on the edges of each range, but I'm confused about how many total cases that would make.
MI
Mica
12 months ago
I'm not entirely sure, but I feel like we might need more than 4 test cases because of the boundaries.
VI
Vincenza
12 months ago
I remember practicing a similar question, and I think we might need at least 5 cases to cover all partitions properly.
PA
Paulina
1 year ago
I think we need to identify the boundaries for each range to determine the minimum test cases.
MA
Marg
1 year ago
I'm a bit unsure about how to approach this. Should I just test the midpoint of each range, or do I need to consider the boundaries as well? I want to make sure I get this right.
NU
Nu
1 year ago
Okay, I see the different investment ranges and corresponding interest rates. I'll need to make sure I cover the lower and upper bounds of each range to fully test the system.
HA
Harrison
1 year ago
Hmm, let me think this through. We have four investment ranges, so I'll need to identify the boundary values for each range. That should give me the minimum number of test cases.
FR
Frank
1 year ago
This looks like a straightforward application of equivalence partitioning and boundary value analysis. I think I can handle this one.
KA
Kanisha
1 year ago
Wait, is this a trick question? What if the system can only handle 4 test cases? Then option B is the way to go, right? Unless, of course, the system is bulletproof and can handle all 16 test cases. In that case, I'm going with the option that has the most test cases - D!
MA
Mattie
1 year ago
I agree, let's go with option D to ensure thorough testing.
LA
Lashaun
1 year ago
That's a good point. Maybe we should consider option D to cover all possibilities.
HU
Hui
1 year ago
But what if we miss some important scenarios with only 4 test cases?
TI
Tina
1 year ago
I think we should go with option B, just to be safe.
RE
Refugia
1 year ago
Woah there, slowpoke! You're forgetting about the edge cases. We need to test the absolute minimum and maximum values for each partition, plus a few in the middle. That's 16 test cases, no doubt. D is the way to go.
SH
Shawnda
1 year ago
This is a piece of cake! All we need to do is test the midpoint of each partition, so that's 4 test cases. Easy peasy. I'll go with option A.
CA
Carmen
1 year ago
I'm not sure, but I think we need to cover each partition with at least one test case, so the answer should be A) 5.
AN
Antione
1 year ago
I agree with Susana, because we have 4 valid equivalence partitions and 1 invalid partition.
SA
Samira
1 year ago
Hmm, I'm not so sure. With four partitions, we need to test the upper and lower bounds of each one, so that's 8 test cases. Plus, we should probably throw in a few extra cases just to be thorough. I'm going with option C - 8 test cases.
LI
Lilli
1 year ago
I agree, option C - 8 test cases seems like the best choice.
HE
Heidy
1 year ago
I think you're right. We do need to test the upper and lower bounds of each partition.
JI
Jina
2 years ago
Okay, let's think this through. We have four equivalence partitions, so the minimum number of test cases would be four to cover all of them. But we also need to consider the boundary values, so that adds a few more. I'd go with option B - 4 test cases should do the trick.
SU
Susana
2 years ago
I think the answer is A) 5.